- C30, D30, C60 -

Ocean Defenders Alliance Operating from ship and shore ODAs allvolunteer boat and dive crews remove abandoned fishing nets traps lines plastic and other manmade debris threatening ocean wildlife and habitats. READ MORE Ocean Defenders Alliance Operating from ship and shore ODAs allvolunteer boat and dive crews remove abandoned fishing nets traps lines plastic and other manmade debris threatening ocean wildlife and habitats. READ MORE Island of Hawaii Scuba Scholarship Program Announcing the Ocean Defenders Alliance firstever Student Scuba Scholarship Program. ODA is offering a full scholarship for Open Water Scuba Certification to high school students between the ages of 1518 years as well as a full scholarship for the Dive Against Debris Certification after their Open Water Certification is completed.